This describe much of the western world at this snapshot in time, if to differing degrees.
In Canada for example, it seems many people are treating real estate like the lady in the story treats cans of tuna: buy as much as you can afford. And, our government seems similarly disinterested in the problem.
It's very tempting to conclude that this is all by design (this sentiment is picking up a lot of steam in Canada, and I wouldn't be surprised if it is partially true), but I think what's more realistic is that this is simply emergence in action: a system such as the one we live in (Earth, humanity, etc) combined with particular forms of governance (representative democracy) eventually produces the phenomenon we are now seeing more or less globally: concentration of wealth and power, at a constantly increasing rate.
I think it's possible for leadership to change this, but I do not personally believe that representative democracy is necessarily capable of discovering such a leader and allowing them to advance through the ranks. Perhaps in anomalous situations someone could slip through, but my intuition is that anyone with righteous populist goals (maximizing well being for all people) would make it through the many sophisticated filters that exist, one of the main ones being the media.